| | Description | |
| Comments: | The distance between Gruesletten and Huken is 700 - 800 m. Katophorite occures in the grorudite-dyke whitch runs through the occurrences. | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Brøgger, W.C. (1894) Die Eruptivgesteine des Kristianiagebietes. 1. Die Gesteine der Grorudit - Tinguait - Serie. (Videnskabsselskabets Skrifter I. Mat.-Naturv. Kl. 1894, no. 4) p. 37 | | Data | |
| Mineral Data: | Click here to view Katophorite data | | Locality Data: | Click here to view Huken Quarry, Grorud, Oslo, Norway |
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